Yu Zhang
@zzuwenjie
China, Zhengzhou City
Joined Jul 2017
World Rank: #25743 (1.1 points)
Institution: ZZU
Activity over the last year
Effectiveness
- Problems solved
- 21
- Solutions submitted
- 49
China, Zhengzhou City
Joined Jul 2017
World Rank: #25743 (1.1 points)
Institution: ZZU